Lisdawati, L., Purnomo, S. Y., Melinda, M., Lase , H., Yulianto, E. and Yusnina, Y. (2023) “Analysis of Revenue, Marketing Costs, and Profit Before and During the Covid-19 Pandemic”, Kontigensi : Jurnal Ilmiah Manajemen, 11(1), pp. 225-232. doi: 10.56457/jimk.v11i1.346.